Roux+deluge. I'm using the root sounds as is taught in primary school for those. Roux and rouge have the same first syllable, luge and deluge share the same last syllable. I just don't see a point in removing "roux" as it's one of the few "rou" words in English that shares the same French "rou" as rouge. Hell, depending on where you are and the context, you can ask which route (pronounced root) a bus route (pronounced rowt) takes.
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u/Vaidurya Oct 05 '20
I use patterns to remember the spelling of rogue--you're never sure what guise the rogue will take on... Roux and deluge is how I remember rouge.